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While synchronising a 3-phase alternator to the bus-bar the paralleling switch should be closed | |
A. | just before the pointer reaches the vertical position when moving in the fast direction [Correct Answer] |
B. | just after the pointer passes the vertical position when moving in the fast direction. [Wrong Answer] |
C. | when pointer indicates fast position. [Wrong Answer] |
D. | when pointer indicates slow position [Wrong Answer] |